Most of the 108 people killed in Syria's Houla region on Friday were executed in cold blood, according to the U.N.

Survivors spoke of armed Shabiha militiamen, supporters of the Assad regime from nearby Alawite villages, bursting into homes shooting at everyone inside and slitting children's throats.

The massacre has prompted UN-Arab League envoy Kofi Annan to fly to Damascus to meet with President Bashar al-Assad.

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